VIT 422 - Water-cooled Light & Weather Fastness Tester

Water-cooled Light & Weather Fastness Tester (Weatherometer), to determine the color fastness, aging resistance of textiles, plastics, rubber products or materials by objecting to the simulated conditions of nature weather (daylight, rain, temperature and humidity, etc.). The tester simulates both light and dark cycles and nature weather conditions by rack sprays and water-cooled long-arc-xenon lamp equipped.


  • Light intensity set digitally, real-time monitoring, automatically adjust to meet the different standards required for testing the stability of light source (optional 420nm or 300 ~ 400nm band monitoring)
  • Blackboard Thermometer (BPT), the Standard Blackboard Thermometer (BST), Irradiance detector and samples placed in the same position, a true reflection of the sample under test conditions, the data displayed as figures, charts, curves on the large color screen, no need to stop for observation.
  • Large colorful display, a variety of test monitoring modes (animation, digital, graphics) operate easily and clearly.
  • Sample holders can be timed independently to achieve different tests simultaneity in the
    same machine
  • Equipped with Water-cooled rated 4500W long-arc-xenon- lamp, truly simulates the daylight spectrum.
  • Professional water circulation system, reduce operating costs.
  • Industrial temperature control (cooling) system offers quickly and smoothly control
  • Ultrasonic humidifier, professional dehumidification system to ensure accurate and stable
    humidity conditions.
  • Equipped with self-circulation system and air filtration system, significantly reducing the
    environmental requirements.
  • Cooled by circulating water chillers / water cooling two options to choose from.
  • Quality assurance of 1000 hours continuous running.
  • Front and back sides spray pattern on samples.

AATCC 16, AATCC 169, ISO105-B02/B04/06, ISO4892, ASTM G155, GB/T 8427, GB/T 8430, GB/T 14576, GB/T 1865, GB/T 1766, GB/T 15102, GB/T 15104, GB/T 16422.1, GMW 3414, SAEJ 1960, SAEJ 1885, JASO M346, PV 1303, M & S C9, JIS L0843

380 V 50 Hz 12 KW

300 Kg

1000 x 800 x 1800 mm (L x W x H)

How to Choose the Correct Fabric for Color Fastness Test?

If the sample is a pure textile: The first one should be lined with the same type of sample fabric. The second one, according to the standard requirements; if the sample is a blended fabric: then the first piece of the sample with the main fiber composition of the same lining fabric, the first piece. Select the same content of the sample fiber and the same lining fabric. If the sample is an interwoven fabric: such as a polyester-cotton cover, use the same two pieces of fabric as the sample components. Namely polyester sides with polyester lining, and cotton sides with cotton lining.


Does the Water-based light color fastness test machine have any advantages or disadvantages?

(1) The advantages are as follows:

  1. Such as drum air-cooled light fastness test machine lamp maximum power is 2.8kw, while the lowest air-cooled type can reach 4.8kw.
  2. Large test area. Such as water-cooled light fastness test machine (TF422) test area is22mm ^ 2 (339in ^ 2).
  3. Closed-loop control of key test parameters. It can achieve precise control to irradiance, blackboard temperature, test room air temperature and relative humidity, which a drum air-cooled light colorfastness test machine can not do.

(2) The disadvantages are as follows:

  1. High cost of purchase. Such as xenon lamp weather resistance chamber (TF422) purchase costs according to different configurations, each need $60000 ~ $80000.
  2. High cost of consumables. Water-cooled models of supplies, including lamps, internal and external filters, water filters, blackboard thermometers and standard calibration lamp. A commonly xenon arc chamger supplies the annual cost of $1500 ~ $8000; lamp sales of up to $1,400 each.
  3. High failure rate. Water-cooled models have a complex structure, many moving parts which are easy to damage, and maintenance is relatively inconvenient.
  4. The sample is not easy to place. It is the same as a drum-type air-cooled light fastness testing machine, which can only hang the sheet samples of the provisions.
  5. Lamp replacement is not easy. Flushing of a water-cooled light fastness tester requires removing the sample, draining it, removing the filter before the lamp can be replaced, and requires two operators.
  6. Irradiance calibration of xenon weathering test chamber is not easy. Water-cooled standard light irradiance using standard lamp calibration, the operation steps are almost same as changing the lamp, calibration value requires manual reading before inputing the machine. The standard lamp also has an expendable service life.
  • Working modes To simulate and reinforce the impact of the nature of the measured object, providing light, temperature, humidity, rain and other quantitative indicators.
  • Light source 4500W Water-cooled long-arc xenon lamp
  • Average lifetime 1200 h
  • Temperature range Room temp. + 5 ~ 48 ℃, accuracy +/- 2 ℃
  • Humidity range 30 ~ 85% RH accuracy +/- 5 %
  • Test time control 1000h
  • Irradiance range (0.8 ~ 1.400) +/- 0.02 W/m2 @ 420nm
    (35 ~ 55) +/- 1 W/m2 @300 ~ 400 nm
    Other range can be digitally set and automatic compensation
  • Sample holder 210 x 45 mm, the max. 250 samples could be tested in the same
  • Rotation speed of sample holder 1 rpm
  • Independent timing of sample holders ≤ 1000h
  • BPT Range (40 ~ 80) +/- 2℃
  • BST Range (40 ~ 85) +/- 1℃